15.4 Docs: Minor feature updates (#81618)
Updates the docs to include the new options in 15.4.
- `prefetch="auto"` option: https://github.com/vercel/next.js/pull/78689
- `next build` new `--debug-prerender option`:
https://github.com/vercel/next.js/pull/80667
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Co-authored-by: graphite-app[bot] <96075541+graphite-app[bot]@users.noreply.github.com>
